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7. INTERFACE FOR MODEL DP8340-M
( MODULAR JACK CONNECTOR )
7-1. Interface Specifications
(1) Synchronization system Asynchronous
(2) Baud rate 150, 300, 600, 1200, 2400, 4800, 9600,
BPS (Selectable)
(3) Word length
Start bit: 1 bit
Data bit: 7 or 8 bits (Selectable)
Parity bit: Odd, Even, or None (Selectable)
Stop bit: 1 or 2 bit length (Selectable)
(4) Signal polarity
RS-232C MARK : Logic “1” (–3V to –25V)
SPACE : Logic “0” (+3V to +25V)
(5) Handshaking
1 DTR Mode (1 block)
2 X-ON/Y-OFF Mode
3 STX-ETX Mode
Note: STX-ETX Mode may use DTR or X-ON/X-OFF, selected by DIP SW 1-
5. See Chapter 9. for details.
7-2. Interface Circuit
Input (RXD, CTS)
Output (DTR, FAULT, TXD, RTS)
Figure 7-1. RS-232C Interface